Detections
Analytics
CVE-2021-3999
high
Description
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.
References
https://www.tenable.com/cyber-exposure/tenable-2022-threat-landscape-report
https://www.openwall.com/lists/oss-security/2022/01/24/4
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
https://sourceware.org/bugzilla/show_bug.cgi?id=28769
https://security.netapp.com/advisory/ntap-20221104-0001/
https://security-tracker.debian.org/tracker/CVE-2021-3999
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html